import Vue from 'vue'
import Router from 'vue-router'
import Login from './components/Login.vue'
import Home from './components/Home.vue'
import Welcome from './components/Welcome.vue'
import Users from './components/user/Users.vue'
import Rights from './components/power/Rights.vue'
import Roles from './components/power/Roles.vue'
import Cate from './components/goods/Cate.vue'
import Params from './components/goods/Params.vue'
import GoodsList from './components/goods/List.vue'
import Add from './components/goods/Add.vue'
import Order from './components/order/Order.vue'
import Report from './components/report/Report.vue'
Vue.use(Router)
    const router= new Router({
        routes: [
            {path:'/',redirect: '/login'},
            { path:'/login', component:Login},
            {
                 path:'/home', 
            component:Home,
            redirect:'/welcome',
            children:[{
                path:'/welcome',component:Welcome
            },{path:'/users',component:Users},
              {path:'/rights',component:Rights},
              {path:'/roles',component:Roles},
              {path:'/categories',component:Cate},
              {path:'/params',component:Params},
              {path:'/goods',component:GoodsList},
              {path:'/goods/add',component:Add},
              {path:'/orders',component:Order},
              {path:'/reports',component:Report},
            ]}
           
        ]
    })
    //挂载路由导航守卫
  router.beforeEach((to,from,next)=>{
      //to将要访问的路径
      //from代表从哪一个路径跳转而来
      //next是一个函数，表示放行    next()  next('/login')强制跳转
         if(to.path==='/login') return next();
         //获取token
        const tokenStr= window.sessionStorage.getItem('token')
        if(!tokenStr) return next('/login')
        next()
      
  })
    export default router